• @[email protected]
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      112 years ago

      government filling up a secret section of every factory-fresh hard drive with CSM and terrorist material in case they ever want to lock you away

  • Turun
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    212 years ago

    The issue is in your software that displays the capacity (most likely windows).

    You bought 2 TB SSD. You got 2 TB SSD. This is equivalent to 1.8 TiB (think of it like yards and meter). Windows shows you the capacity in TiB, but writes TB next to it.

    Say you buy a 2.18 yard stick. You get a 2.2 yard stick, which is equivalent to 2 meter. Windows will tell you it’s 2 yards long. Why? I don’t know.

    • @[email protected]
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      62 years ago

      A 14 TB medium is always 14 TB, which is close to 12 TiB. Minus metadata of the filesystem and granularity of a allocation sector.

    • @[email protected]
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      92 years ago

      I’ve always known the advertised space is larger than the actual space, but it was never quite the shock as it was when I recently bought an 18TB external drive with ~16 TB usable.

      • @[email protected]
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        22 years ago

        It was so during the age of floppy discs. Our computers use TiB, marketers use TB to sell storage

        • @[email protected]
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          22 years ago

          The biggest problem is that Windows still calls TiB and friends with si prefixes (so 1TiB shows as 1TB). MS has done this since DOS (but at least back then MiB didn’t exist. They could’ve used base 10 though).

          • @[email protected]
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            12 years ago

            TiB (and the related) didn’t get named until recently, and I think only Linux uses those abbreviations — and not universally — windows still says kB, mB etc, while using the binary equivalents

  • Sunkblake
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    2 years ago

    Like many have already said, there is a difference in units when talking about actual storage and the storage on the label.

    I feel like some marketing team made the changes, because it is technically correct and “easier for normal people to understand”… But that makes it confusing when normal people plug it in so, that team should be thrown overboard.

    Edit: easier not earlier

  • @[email protected]
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    2 years ago

    Instead of that we should protest against si k should be K

    • B
    • kB < — Imposter
    • MB
    • GB
    • TB
    • PB

    (Since this is SI it’s powers of 10^3 not 2^10 when going one level up)

  • @[email protected]
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    22 years ago

    It is 2tb. If you look in your drive manager you will see: 2tb. The 0.2tb missing are from the formatting

  • @[email protected]
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    232 years ago

    That’s for the magic numbers that hold the 1.8 TB together. They live in that 0.2 TB and if you kill them then the 1.8 TB fly apart at the speed of light.

  • @[email protected]
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    1602 years ago

    I know this a a joke but in case some people are actually curious: The manufacturer gives the capacity in Terabytes (= 1 Trillion Bytes) and the operating system probably shows it in Tebibytes (1024^4 Bytes ≈ 1.1 Trillion Bytes). So 2 Terabytes are two trillion bytes which is approximately 1.82 Tebibytes

    • @[email protected]
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      1312 years ago

      They could easily use the proper units, but sometime someone decided to cheat and now everyone does to the point that this is the standard now.

      • @[email protected]
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        122 years ago

        Indeed, Windows could easily stop mislabeling TiB as TB, but it seems it’s too hard for them.

        • @[email protected]
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          2 years ago

          The IEC changing the definition of 1KB from 1024 bytes to 1000 bytes was a terrible idea that’s given us this whole mess. Sure, it’s nice and consistent with scientific prefix now… except it’s far from consistent in actual usage. So many things still consider it binary prefix following the JEDEC standard. Like KiB that’s always 1024 bytes, I really think they should’ve introduced another new unambiguous unit eg. KoB that’s always 1000 bytes and deprecated the poorly defined KB altogether

          • @[email protected]
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            82 years ago

            M stands for Mega, a SI prefix that existed longer than the computer data that is being labeled. MB being 1000000 bytes was always the correct definition, it’s just that someone decided that they could somehow change it.

            • @[email protected]
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              12 years ago

              B and b have never been SI units. Closest is Bq. So if people had not been insisting that it’s confusing noone would’ve been confused.

            • @[email protected]
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              42 years ago

              Consistency with proper scientific prefix is nice to have, but consistency within the computing industry itself is really important, and now we have neither. In this industry, binary calculations were centric, and powers of 2 were much more useful. They really should’ve picked a different prefix to begin with, yes. However, for the IEC correcting it retroactively, this has failed. It’s a mess that’s far from actually standardised now

        • @[email protected]
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          42 years ago

          Not sure why you’re getting downvoted for spreading the truth. It’s Windows’ fault.

      • @[email protected]
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        62 years ago

        I think there were some court cases in the US the HDD manufacturers won that allows them to keep using those stupid crap units to continue to mislead people. Been a minor annoyance for decades but since all the competition do it & no govt is willing to do anything everyone is stuck accepting it as is. I should start writing down the capacity in multiple units in review whenever buy storage devices going forward.

        • @[email protected]
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          2 years ago

          Network / signal engineers have always, and are still, operating in bits not bytes. They’ve been doing that when what we understand now as byte was still called an octet and when you send a byte over any network transport it’s probably not going to send eight bits but that plus party, stop, whatnot ask a network engineers.

            • @[email protected]
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              2 years ago

              Nonsense. It’s a simple continuation of something that has always been around. They would have needed to actively and purposefully changed it. The first company that tried to sell “1 Megabyte/s” instead of “8 Megabits/s” is shooting themselves in the foot because the number is smaller. If it was going to change, you would need everyone to agree at once to correct the numbers the same way.

              Modems were 300 baud, then 1200 baud, then 56.6k baud. ISDN took things to 128k baud, and a T1 was 1.544M baud. Except that sometime around the time things went into tens of k, we started saying “bits” instead of “baud”. In any case, it simply continued with the first DSL and cable modems being around 1 to 10 Mbits. You had to be able to compare it fairly to what came before, and the easiest way to do that is to keep doing what they’ve been doing.

              Ethernet continues to be sold in the same system of measurement, for the same reasons.

              • @[email protected]
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                12 years ago

                The first company that tried to sell “1 Megabyte/s” instead of “8 Megabits/s” is shooting themselves in the foot because the number is smaller.

                You’re telling me that what I say is nonsense and you just paraphrase what I said.

                Don’t go thinking engineering has anything to do with what marketing put up on their storefront.

                • @[email protected]
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                  2 years ago

                  It has plenty to do with engineering, because it was engineering that first decided to measure things this way. Marketing merely continued it.

            • Fuck spez
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              132 years ago

              What speed test are you running that gives its results in bytes?

              • @[email protected]
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                72 years ago

                His speed tests consists of downloading files lol

                Granted, that’s probably a better way of getting the actual attainable speed

        • @[email protected]
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          242 years ago

          Eh, that at least goes back to the days of dial-up (at least).

          56k modem connections were 7k bytes or less.

          The drive thing confused and angered many cause most OSs of the time (and even now) report binary kilobytes (kiB) as kB which technically was incorrect as k is an SI prefix for 1000 (10^3) not the binary unit of 1024 (2^10).

          Really they should have advertised both on the boxes.

          I think Mac OS switched to reporting data in kilobibytes (kiB) vs kB since Mac OS 10.6.

          I remember folks at the time thinking the new update was so efficient it had grown their drive space by 10%!

          • @[email protected]
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            62 years ago

            While macOS did indeed primarily switch to KiB, MiB and Gib, it does at times still report storage as KB, MB, GB, etc., however it uses the (correct) 1000B = 1KB

            And afaik, Linux also uses the same (correct) system, at least most of the time.

            The only real outlier is Windows, which still uses the old system with KB = 1024B, some of the time. In certain menus, they do correctly use KiB

            • @[email protected]
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              2 years ago

              Please note that kilo is a small k. n, μ, m, k, M, G, T, …

              And yes. A lot of people here get at least one of those wrong.

        • @[email protected]
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          62 years ago

          Thing is, there’s no rational reason to arbitrarily use groups of 8 bits for transmission over the wire. It’s not just ISPs who use bits, the whole networking industry does it that way.

          • @[email protected]
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            2 years ago

            To expand on this a bit more, bits are used for data transmission rates because various types of encoding, padding, and parity means that data on the wire isn’t always 8 bits per byte. Dial up modems were very frequently 9 bits per byte (8-n-1 signalling), and for something more modern PCIe uses 8b/10b encoding, which is 10 bits on the line for each 8 bits of actual payload.

      • @[email protected]
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        232 years ago

        Before mibi-, gibi-, tibibytes, etc. were a thing, it was the harddrive manufacturers who were creating a little. Everyone saw a kilobyte as 1024 bytes but the storage manufacturers used the SI definition of kilo=1000 to their advantage.

        By now, however, kibibytes being 1024 bytes and kilobytes being 1000 bytes is pretty much standard, that most agree on. One notable exception is of course Windows…

      • IninewCrow
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        52 years ago

        So what you’re saying is that … we can make up whatever number and standard we want? … In that case, would you like to buy my 2 Tyranosaurusbytes Hard Drive?

      • @[email protected]
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        42 years ago

        And as far as my wife is concerned, I’m definitely 6 ft tall. Height ain’t what it used to be.

    • @[email protected]
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      372 years ago

      You’re missing a huge part of the reason why the term ‘tebibytes’ even exists.

      Back in the 90s, when USB sticks were just coming out, a megabyte was still 1024 kilobytes. Companies saw the market get saturated with drives but they were still expensive and we hadn’t fully figured out how to miniaturize them.

      So some CEO got the bright idea of changing the definition of a “megabyte” to mean 1000. That way they could say that their drive had more megabytes than their competitors. “It’s just 24 kilobytes. Who’s going to notice?”

      Nerds.

      They stormed various boards to complain but because the average user didn’t care, sales went through the roof and soon the entire storage industry changed. Shortly after that, they started cutting costs to actually make smaller sized drives but calling them by their original size, ie. 64MB* (64 MB is 64000).

      The people who actually cared had to invent the term “mebibyte” purely because of some CEO wanting to make money. And today we have a standard that only serves to confuse people who actually care that their 2TB is actually 2048 GiB or 1.8 TiB.

      • @[email protected]
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        92 years ago

        Or - you know - for consistency? In physics kilo, mega etc. are always 10^(3n), but then for some bizarre reason, unit of information uses the same prefixes, but as 2^(10n).

      • @[email protected]
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        That’s just wrong. “Kilo” is ancient Greek for “thousand”. It always meant 1000. Because bytes are grouped on powers of two and because of the pure coincidence that 10^3 (1000) is almost the same size as 2^10 (1024) people colloquially said kilobyte when they meant 1024 bytes, but that was always wrong.

        Update: To make it even clearer. Try to think what historical would have happened if instead of binary, most computers would use ternary. Nobody would even think about reusing kilo for 3^6 (=729) or 3^7 (=2187) because they are not even close.

        Resuing well established prefixes like kilo was always a stupid idea.

      • @[email protected]
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        2 years ago

        Dude, a “1.44MB” floppy disk was 1.38MiB once formatted (1,474,560 B raw). It’s been going on for eternity.

        It’s inconsistent across time though. 700MB on a CD-R was MiB, but a 4.7GB DVD was not.

        RAM has always, without exception, been reported in 1024 B per KB. Inversely, network bandwidth has been 1000 B per KB for every application since the dialup days (and prior).

        • @[email protected]
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          42 years ago

          One thing to point out, The floppy thing isn’t due to formatting, the units themselves were screwed up: It’s not 1.44 million bytes or 1.44 MiB regardless of formatting - they are 1440 kiB! (Which produces the raw size you gave) which is about 1.406 MiB unformatted.

          The reason is because they were doubled from 720 kiB disks*, and the largest standard 5¼ inch disks (“1.2 MB”) were doubled from 600 kiB*. I guess it seemed easier or less confusing to the users then double 600k becoming 1.17M.

          (* Those smaller sizes were themselves already doubled from earlier sizes. The “1.44 MB” ones are “Double sided double density”)

  • @[email protected]
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    22 years ago

    a bit off topic, but do someone understand why nowadays cheap USB-pen smallest capacity is 130 TB?

    • Mac
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      122 years ago

      Unless you mean GB, that’s a fake drive. If you mean GB it’s cause the lower density memory chips are in lower supply as we continue to streamline manufacturing

  • teft
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    2 years ago

    in small print 2TiB*

    From wikipedia:

    More than one system exists to define unit multiples based on the byte. Some systems are based on powers of 10, following the International System of Units (SI), which defines for example the prefix kilo as 1000 (103); other systems are based on powers of 2.

    Your system calculates 1 terabyte as 1 tebibyte which is 2^40 bytes=1,099,511,627,776 bytes and the hardware manufacturers calculate 1 terabyte as 1 terabyte which is 10^12=1,000,000,000,000 bytes. That is where the discrepancy is.